Description: Capacity: 4000 mAh;Voltage: 11.25V;Number of cells: 3;Cells technology: Li-Polymer;Warranty: 12 months;Cells manufacturer: Greencell;Overheat protection: Yes;Surge protection: Yes;Colour: Black;Overdischarge protection: Yes;Overcharge protection: Yes;The possibility of return: Up to 30 days;Product code: HP141;Manufacturer: Greencell;Work time: from 1.5 up to 10h;Series: Polymer